What happened to this slime? It turned green 😳

This is a kglue water slime. I have played with this slime 2 times last November 2024. Haven’t been able to since because it turned into a hard bouncy ball texture and water poured out of the top when I opened it. I’m puzzled by it turning green now. I’m super careful and always washing my hands before and after. Clean surfaces always. I know things can happen no matter how safe we are but I’m so confused. And NO SHADE to this shop I order from them regularly and never have issues , I’m not blaming them for this at all.

This is a kglue water slime. I have played with this slime 2 times last November 2024. Haven’t been able to since because it turned into a hard bouncy ball texture and water poured out of the top when I opened it. I’m puzzled by it turning green now. I’m super careful and always washing my hands before and after. Clean surfaces always. I know things can happen no matter how safe we are but I’m so confused. And NO SHADE to this shop I order from them regularly and never have issues , I’m not blaming them for this at all.